JEE Main · 2022 · 29 Jun 2022 · Shift 2 · Some Basic Concepts of Chemistry

Using the rules for significant figures, the correct answer for the expression

\frac{0.02858 \times 0.112}{0.5702}

will be:

(A)0.005613
(B)0.00561✓ Correct
(C)0.0056
(D)0.006

Answer: (B)

Solution

When performing calculations, the result should not be more precise than the least precise measurement. The least precise term in the calculation has three significant figures (0.112). Therefore, the final answer must be rounded to three significant figures: 0.00561.

JEE Main · 2022 · 29 Jun 2022 · Shift 2 · Single correct option

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